mbsnbset.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 69 行

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*
*                            Open Watcom Project
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*    This file contains Original Code and/or Modifications of Original
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#include "variety.h"
#include <mbstring.h>
#include "farfunc.h"



/****
***** Set all characters in 'string' to 'ch', overwriting any partial bytes
***** at the end with ' '.  Equivalent to strnset().
****/

_WCRTLINK unsigned char _FFAR *_NEARFAR(_mbsnbset,_fmbsnbset)( unsigned char _FFAR *string, unsigned int ch, size_t n )
{
    size_t                  char_size;
    unsigned char _FFAR *   string_start;
    unsigned char           mbc[MB_LEN_MAX+1];

//    if( !__IsDBCS && !ch&0xFF00 )  return( strnset( string, ch, n ) );

    /*** Set every character in the string to 'ch' ***/
    _NEARFAR(_mbvtop,_fmbvtop)( ch, mbc );  /* convert from unsigned int */
    char_size = _NEARFAR(_mbclen,_fmbclen)( mbc );    /* get char size */
    string_start = string;                            /* save string start */
    while( n >= char_size ) {
        _NEARFAR(_mbccpy,_fmbccpy)( string, mbc );    /* copy the character */
        string = _NEARFAR(_mbsinc,_fmbsinc)( string );/* point to next spot */
        n -= char_size;                               /* update counter */
    }

    /*** Pad any remaining bytes with blanks ***/
    while( n-- > 0 ) {
        *(string++) = ' ';
    }

    return( string_start );
}